diff --git a/litellm/router.py b/litellm/router.py
index abbd6343b..e67507318 100644
--- a/litellm/router.py
+++ b/litellm/router.py
@@ -351,6 +351,7 @@ class Router:
             kwargs.setdefault("metadata", {}).update(
                 {
                     "deployment": deployment["litellm_params"]["model"],
+                    "api_base": deployment.get("litellm_params", {}).get("api_base"),
                     "model_info": deployment.get("model_info", {}),
                 }
             )
@@ -438,6 +439,7 @@ class Router:
                 {
                     "deployment": deployment["litellm_params"]["model"],
                     "model_info": deployment.get("model_info", {}),
+                    "api_base": deployment.get("litellm_params", {}).get("api_base"),
                 }
             )
             kwargs["model_info"] = deployment.get("model_info", {})
@@ -951,6 +953,7 @@ class Router:
                 {
                     "deployment": deployment["litellm_params"]["model"],
                     "model_info": deployment.get("model_info", {}),
+                    "api_base": deployment.get("litellm_params", {}).get("api_base"),
                 }
             )
             kwargs["model_info"] = deployment.get("model_info", {})
@@ -1118,6 +1121,7 @@ class Router:
                 {
                     "deployment": deployment["litellm_params"]["model"],
                     "model_info": deployment.get("model_info", {}),
+                    "api_base": deployment.get("litellm_params", {}).get("api_base"),
                 }
             )
             kwargs["model_info"] = deployment.get("model_info", {})